Virus infection of the gasserian ganglion and its nerve branches characterized by pain and vesicular eruptions with much swelling. Ocular involvement is usually heralded by a vesicle on the tip of the nose. This area is innervated by the nasociliary nerve.
B02.3 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
The 2023 edition of ICD-10-CM B02.3 became effective on October 1, 2022.
This is the American ICD-10-CM version of B02.3 – other international versions of ICD-10 B02.3 may differ.